body{
  position: relative;
  height: 100%;
}
.nav{
  width: 100%;
  height: 50px;
  background-color: #fff;
}
.one{
  width: 100%;
  background-color: #fff;
  /* height: 120px; */
}
.qq{
  width: 100%;
  height: 40px;
  border-bottom: 1px solid #f7f7f7;
}
.qq>i{
  font-size: 14px;
}
.nav-w{
  width: 100%;
  height: 50px;
  background-color: blue;
  bottom: 0%;
}
button{
  width: 100%;
  height: 50px;
  background-color: #f7f7f7;
  color: red;
  outline: none;
  border: none;
}
.mr-10{
  color: #797d82;
}